Home / 7,806.21-10,772.36-4,269.20

Finding the Fourth Proportional to 7,806.21, 10,772.36 and 4,269.20

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Solution

The fourth proportional to 7,806.21, 10,772.36 and 4,269.20 is: 5,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.21 : 10,772.36 = 4,269.20 : x
  2. Step 2: Convert to fraction form
    7,806.21/10,772.36 = 4,269.20/x
  3. Step 3: Cross multiply
    7,806.21x = 10,772.36 × 4,269.20
  4. Step 4: Simplify right side
    7,806.21x = 45,989,284.10
  5. Step 5: Solve for x
    x = 45,989,284.10/7,806.21
  6. Step 6: Final answer
    x = 5,891.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.